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Team 2: Hoard Robotics

This project aims to create a team of autonomous robots that utilize swarm behavior to effectively complete various tasks. The design prioritizes user safety, minimizing the risk of harm to users while accepting that robots may potentially damage themselves through failures. Critical components include Ambient Light Sensors, H-Bridge for motor control, a Voltage Regulator for battery management, and the PIC18J26F13 Microcontroller. Each component's potential failure effects and criticality are evaluated to ensure the robot's reliable performance in various environments.

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Team 2: Hoard Robotics

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  1. Team 2: Hoard Robotics Jamis Martin Trenton Andres Jay Zifer Brad Nowak

  2. Project Overview • The goal of the project is to develop a team of robots that will utilize swarm behavior to accomplish tasks • Robots are designed to be autonomous, therefore harm to user is unlikely • Failures could cause harm to themselves

  3. Critical Components • Ambient Light Sensors • Voltage Regulator • H Bridge • PIC18J26F13

  4. Ambient Light Sensors (TEMPT4400) • They may be operating very close to hot light bulbs • There is opportunity for them to overheat • Could become damaged from collisions • λp = λo*πq*πe*πt • λp = .004*5.5*4.0*1.6 • λp = .1408

  5. Mode, Effect, and Criticality • The robot would no longer recognize any ambient light • Little effect on rest of system • Low criticallity

  6. H Bridge (L298) • Controlling our motors • Potential to become hot • Collision damage potential • λp = (C1*πt + C2*πe)*πq*πl • λp = (.01*.19 + .0056*4.0)*10*1.0 • λp = .2259

  7. Mode, Effect, and Criticality • Motors could stop working, or always be on • Could cause collisions, harming other parts in system • Low criticality

  8. Voltage Regulator (MCP1802) • Managing battery power • It will become hot • Collision damage potential • λp = (C1*πt + C2*πe)*πq*πl • λp = (.01*1.9+.0019*4.0)*10*1.0 • λp = .095

  9. Mode, Effect, Criticality • The robot will likely stop altogether • Other parts are at high risk due to unwanted voltage levels • Low Criticality

  10. PIC18J26F13 Microcontroller • It could suffer heat damage • Collision damage • λp = (C1*πt + C2*πe)*πq*πl • λp = (.14*5.0+.01*4.0)*10*1.0 • λp = 7.4

  11. Mode, Effect, Criticality • Robot will cease to function as intended. Could cause LED failures, irregular motor behavior, strange packets or none at all, etc. • Could cause collisions, damaging other parts in system • Low criticality

  12. Questions? ?

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